Bicycle frame



FIG. 1 is a perspective view of a bicycle frame in accordance with the principles of the present disclosure;

FIG. 2 is a front view of the bicycle frame of FIG. 1;

FIG. 3 is a rear view of the bicycle frame of FIG. 1;

FIG. 4 is a right side view of the bicycle frame of FIG. 1;

FIG. 5 is a left side view of the bicycle frame of FIG. 1;

FIG. 6 is a top view of the bicycle frame of FIG. 1;

FIG. 7 is a bottom view of the bicycle frame of FIG. 1;

FIG. 8 is a perspective view of the bicycle frame of FIG. 1 in a second configuration in accordance with the principles of the present disclosure; and,

FIG. 9 is a right side view of the bicycle frame of FIG. 8.

The broken lines in the drawing views illustrate portions of the bicycle frame that form no part of the claimed design. Broken lines formed by equal length dashes show unclaimed subject matter. Broken lines formed of unequal length dashes (i.e., dash-dot) define hounds of the claimed design. The shade lines in the drawing views show contour and not surface ornamentation of the bicycle frame. 

CLAIM I claim the ornamental design for a bicycle frame, as shown and described. 